Lightning photography is very easy. At
night, in a dark location, during a distant thunderstorm, you open your camera
shutter and wait for lightning to illuminate the skies. After several
strokes, you close the shutter and repeat the process. Of course, you want
to select a location that will not expose you to the risk of being struck by the
lightning, and you want to keep yourself and your equipment dry, so
photographing distant lightning storms is preferred to photographing storms that
are raging all around you.

Lightning in the distance over the plains of Montana,
as seen from edge of Beartooth Plateau,
near the town of Red Lodge, MT.